A double-drive and double-speed internal mixer

Abstract

The present invention provides a double-drive and double-speed internal mixer in the field of rubber processing technology, including a machine body, characterized in that it further includes: a feeding assembly for intermittent feeding and exhausting air during the internal mixing process, and the feeding assembly is arranged on both sides of the machine body; a rotor assembly that pushes the materials fed from both sides by the feeding assembly towards the middle and rotates and shears them, and rotates and disperses and rotates and shears the materials reaching the middle, and the rotor assembly is sequentially installed on the machine body; and an internal mixing chamber for accommodating the rotor assembly and cooperating with the rotor assembly to internally mix materials, and the internal mixing chamber is arranged in the machine body. The present invention is particularly suitable for the advantages of cyclic shearing, cyclic pushing, squeezing and dispersing, and continuous feeding during multiple quantitative internal mixing and mixing of granular materials.

Description

Technical Field

[0001] The invention relates to the technical field of rubber processing, in particular to a double-drive double-speed regulating internal mixer. Background Art

[0002] Internal mixer is mainly used for plasticizing and mixing rubber. When mixing, various materials in block or granular form are added to the internal mixer for shear mixing. The mixing methods include: 1. Adding materials to the internal mixer at one time for mixing; 2. After adding materials to the internal mixer for mixing, cooling, and mixing again; 3. Adding materials to the internal mixer in a quantitative order for mixing. In the actual production process, the mixing effect is better by adding materials to the internal mixer in a quantitative manner for multiple times.

[0003] Chinese patent CN111070461A discloses a dual-drive dual-speed internal mixer, including a base, a mixing chamber, a discharging mechanism, a feeding chamber and a pressing mechanism. The mixing chamber is installed on one side of the base, and a first rotor and a second rotor are installed separately inside the mixing chamber. A first drive motor, a second drive motor and a double reducer are installed on the other side of the base. The double reducer is provided with a first transmission gear set and a second transmission gear set. The first drive motor drives the first rotor to rotate through the first transmission gear set, and the second drive motor drives the second rotor to rotate through the second transmission gear set. The rotation speeds of the two rotors are independently controlled to meet the processing requirements of the mixed rubber.

[0004] However, in this technical solution, although it is possible to use two groups of speed regulating motors to drive the rotors to rotate and shear the mixed materials, when multiple quantitative additions or the sequential addition and mixing of various materials are performed, it is necessary to continuously open the top bolt for feeding. Moreover, since the rotors are pushed toward the middle to shear and mix, the materials are excessively concentrated in the middle of the rotor, making it difficult for the mixed materials to quickly reach a uniform mixing state. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-drive dual-speed internal mixer in view of the deficiencies in the prior art. The feeding component intermittently feeds and exhausts on one side of the low-speed rotating rotor component. The pushing rotor member pushes the material toward the extrusion rotor member and performs rotational shearing at the junction with the extrusion rotor member. The material reaching the extrusion rotor member is rotated and sheared in the internal mixing chamber. At the same time, the extrusion member with a "V"-shaped structure pushes the material toward the low-speed rotating extrusion member on the other group of extrusion bricks under the power of the high-speed rotating extrusion rotor on one side, so that the material is sheared and pushed again by the pushing rotor member into the pressing components on both sides of the bottom of the pushing rotor member. The pressing components push the material to the pushing rotor member, and the pushing rotor member pushes the material toward the extrusion rotor member again, and so on and so forth, so as to solve the technical problems described in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A double-drive and double-speed internal mixer, including a machine body, characterized in that it further includes: a feeding assembly for intermittent feeding and exhausting air during the internal mixing process, and the feeding assembly is arranged on both sides of the machine body; a rotor assembly that pushes the materials fed from both sides by the feeding assembly towards the middle and rotates and shears them, and the rotor assembly that rotates and disperses and rotates and shears the materials reaching the middle is sequentially installed on the machine body; and an internal mixing chamber for accommodating the rotor assembly and cooperating with the rotor assembly to internally mix the materials, and the internal mixing chamber is arranged in the machine body.

[0008] Further, the rotor assembly in the high-speed rotation state continuously pushes and shears the materials towards the rotor assembly in the low-speed rotation state along the rotation direction, so that the materials are pushed to both sides of the rotor assembly.

[0009] Further, the rotor assembly intermittently switches between high-speed rotation and low-speed rotation.

[0010] Further, the feeding assembly intermittently feeds materials to both ends of the rotor assembly in the low-speed rotation state.

[0011] Further, the internal mixer further includes: a pressure-feeding assembly for pushing the materials pushed to both sides of the rotor assembly towards the rotor assembly, and the pressure-feeding assembly is arranged on one side of the bottom of the machine body.

[0012] Further, the rotor assembly includes: pushing rotor parts symmetrically arranged on both sides; and an extrusion rotor part arranged between the pushing rotor parts; the pushing rotor parts rotating at high speed continuously push the materials towards one side of the extrusion rotor part; the materials are rotated and pushed by the extrusion rotor part to the pushing rotor parts.

[0013] Further, the extrusion rotor part includes: an extrusion rotor; and a first driving part for driving the extrusion rotor to switch between high-speed and low-speed rotation, and the first driving part passes through the pushing rotor part and is connected to the extrusion rotor.

[0014] Further, the extrusion rotor includes: an extrusion rotating body; extrusion parts, and the symmetrically arranged extrusion parts are connected in a "V"-shaped spiral.

[0015] Further, the first driving part includes: a driving part passing through the pushing rotor part and connected to the extrusion rotor; a power switching gear disk, which is arranged in sequence along the axial direction of the driving part; and a transmission assembly, which is arranged on one side of the power switching gear disk and is used to output high-speed and low-speed rotational forces respectively; transmission teeth engaged with the transmission assembly are arranged at intervals on the power switching gear disk; the transmission teeth between adjacent power switching gear disks are arranged staggeredly.

[0016] Further, the pushing rotor part includes: a pushing rotating body, which is in a frustum shape; a conveying part, which is arranged spirally on the pushing rotating body; and a second driving part, which is connected to the pushing rotating body.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) Through the mutual cooperation of the feeding component and the internal mixer chamber component, the present invention can achieve an intermittent connection between the feeding component and the internal mixer chamber, so that during the connection, exhaust treatment and continuous feeding control of granular materials are carried out.

[0019] (2) Through the mutual cooperation between the feeding component and the rotor component, the present invention enables the feeding component to add materials to the internal mixer chamber when the rotor component is in a low-speed rotation state, solving the technical problem of material leakage caused by the rotation of the rotor during continuous feeding of the internal mixer chamber when the rotor component is working.

[0020] (3) Through the mutual cooperation between the pushing rotor part and the extrusion rotor part, while the pushing rotor part continuously pushes and conveys the materials sent by the feeding component towards the extrusion rotor part, the high-speed rotating pushing rotor part also continuously performs shearing treatment at the connection position between the pushing rotor part and the extrusion rotor part, realizing the shearing and pushing of the materials towards the extrusion rotor part.

[0021] (4) Through the mutual action between the extrusion rotor parts, while the extrusion rotor parts perform rotational shearing on the materials in the internal mixer chamber, one side of the extrusion rotor part also drives the materials to rotate and extrude towards the extrusion rotor part on the low-speed side at a high speed, so that when the extrusion part located on the upper layer reaches above the extrusion part on the lower layer, the materials are pushed, pressed and dispersed, thus ensuring the uniformity between continuously added materials.

[0022] (5) Through the mutual cooperation between the extrusion part with a "V" shape and the pressure-feeding component, when the extrusion part disperses the material, it will push the material towards one side of the pressure-feeding channel. At the same time, while the high-speed rotating pushing rotor part shears the material again, the material reaching the pressure-feeding channel will be pushed onto the pushing rotor part and then pushed and sheared by the pushing rotor part again to the side of the extrusion rotor part, realizing the cyclic dispersion and shearing treatment of the material.

[0023] (6) Through the mutual cooperation between the power-switching gear disk and the transmission component, the transmission component will intermittently establish a transmission connection with the transmission teeth on two groups of power-switching gear disks respectively, thereby realizing the intermittent high-speed drive of the two-side extrusion rotor parts in sequence, enabling the high-speed rotating extrusion rotor part to quickly carry the material to extrude and disperse the material on the low-speed rotating extrusion rotor part.

[0024] (7) Through the mutual cooperation between the frustum-shaped pushing rotating body and the conveying part, while the pushing rotating body can push the material towards one side of the extrusion rotor part, it can also effectively reduce the return speed and return amount of the material on the side of the low-speed rotating extrusion rotor part from the top of the mixing chamber after pushing, thus solving the interference caused by the returned material to the feeding process of the feeding component.

[0025] In summary, the present invention is particularly suitable for the advantages of cyclic shearing, cyclic pushing and squeezing dispersion, and continuous feeding during the multiple quantitative mixing of granular materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is of the present invention Figure 1 the sectional view taken along A-A in;

[0028] Figure 3 is of the present invention Figure 2 the enlarged view at M in;

[0029] Figure 4 is of the present invention Figure 1 the sectional view taken along B-B in;

[0030] Figure 5 is of the present invention Figure 1 the sectional view taken along C-C in;

[0031] Figure 6 is of the present invention Figure 1 the sectional view taken along D-D in;

[0032] Figure 7 is of the present invention Figure 6 the enlarged view at L in;

[0033] Figure 8Schematic diagram of the state of the kneading process of the present invention;

[0034] Figure 9 Schematic diagram of the structure of the rotor assembly of the present invention;

[0035] Figure 10 Schematic diagram of the structure of the first driving part of the present invention;

[0036] Figure 11 For the present invention Figure 10 Enlarged view at position N in Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0039] Embodiment 1

[0040] As Figure 1 and 2As shown in the figure, a double-drive and double-speed internal mixer includes a machine body 1, and is characterized in that it further includes: a feeding assembly 2 for intermittent feeding and exhausting air during the internal mixing process. The feeding assembly 2 is arranged on both sides of the machine body 1; a rotor assembly 3 that pushes the materials fed from both sides by the feeding assembly 2 towards the middle and rotates and shears them, and the rotor assembly 3 that rotates and disperses and rotates and shears the materials reaching the middle is sequentially installed on the machine body 1; and an internal mixing chamber 4 for accommodating the rotor assembly 3 and cooperating with the rotor assembly 3 to internally mix the materials. The internal mixing chamber 4 is provided inside the machine body 1.

[0041] It is not difficult to find from the above content that during the mixing process of materials, especially granular materials (such as raw rubber, small materials (ZnO, SA, accelerators, antioxidants, solid softeners, etc.), reinforcing agents or fillers, liquid softeners, etc.) in an internal mixer, it is necessary to continuously open the upper plug, and then add each material into the internal mixing chamber through the feeding door in sequence. However, when adding to the internal mixing chamber, it is necessary to repeatedly open the upper plug for the feeding operation, and when pushing the materials, the materials are sheared during the process of continuously transporting them towards the middle to achieve the purpose of mixing. However, during the process of pushing the materials, the lateral extrusion force received by the materials on the side is relatively small, which leads to a relatively small degree of extrusion of the materials on the side during the process of rotational extrusion, resulting in uneven extrusion, and thus reducing the internal mixing efficiency of achieving uniform mixing.

[0042] In the embodiment of the present invention, various materials to be mixed are added by using the feeding assembly 2, or the materials are quantitatively added to the internal mixing chamber 4 through the feeding assembly 2 according to the single mixing addition ratio. When the materials enter the internal mixing chamber 4, they will enter from both ends of the rotor assembly 3, and after entering, both ends of the rotor assembly 3 will provide a conveying force to push the materials towards the middle for conveying. And during the process of pushing and conveying to the middle, the rotor assembly 3 will also perform high-speed shearing on the materials, so that the materials reaching the middle of the rotor assembly 3 have a pressure towards the inner side, and the rotor assembly 3 will continuously push and shear the materials in the middle with extrusion stress on both sides along the rotation direction, so that while the materials are pushed, dispersed and extruded, they can also be rotated and sheared again, so that the materials are continuously pushed, dispersed and sheared, thus ensuring the mixing efficiency and mixing effect of the materials.

[0043] As Figure 8 shown, the rotor assembly 3 in a high-speed rotation state along the rotation direction continuously pushes and shears the materials towards the rotor assembly 3 in a low-speed rotation state along the rotation direction, so that the materials are pushed to both sides of the rotor assembly 3.

[0044] In this embodiment, during the process of pushing and dispersing the material, in order to improve the effect of pushing and dispersing, the rotor assembly 3 rotating at high speed will continuously push the material onto the rotor assembly 3 on the low-speed side, so that the material is continuously dispersed in the middle. And the shearing action on the material occurs between the rotating rotor assemblies 3 and between the rotor assembly 3 and the internal mixer chamber 4. And as the material is dispersed by the rotor assembly 3, the material will also be pushed by the rotor assembly 3 towards both sides, so that the material returns to both ends of the rotor assembly 3 again. And during the movement towards both ends, the power at both ends of the rotor assembly 3 will perform rotational shearing on the oncoming material, and under the action of the power at both ends of the rotor assembly 3, the material will reach the middle of the rotor assembly 3 again through rotational shearing for extrusion treatment, and so on.

[0045] Furthermore, the rotor assembly 3 intermittently switches between high-speed rotation and low-speed rotation.

[0046] In this embodiment, that is to say, during the process of pushing the material, the rotor assembly 3 on the high-speed side will continuously push the material onto the rotor assembly 3 on the low-speed side. And after the pushing by the rotor assembly 3 on the high-speed side is completed, the rotor assembly 3 on the low-speed side will increase its rotation speed, while the original rotor assembly 3 on the high-speed side will switch to low-speed rotation, so that the other group of rotor assemblies 3 will rotate at high speed again to push the material, making the mixing effect of the continuously pushed material more uniform.

[0047] More specifically, the feeding assembly 2 intermittently feeds the two ends of the rotor assembly 3 in the low-speed rotation state.

[0048] In this embodiment, during the process of feeding the internal mixer chamber 4, the feeding assembly 2 will complete the feeding action when the rotor assembly 3 is in the low-speed state, thus solving the problem that a large amount of material is extruded into the feeding assembly 2 by the rotor assembly 3 rotating at high speed, which interferes with the discharging action of the feeding assembly 2 during the internal mixing process. Thus, continuous feeding into the internal mixer chamber 4 is achieved during the internal mixing process, and during the feeding process, the feeding assembly 2 can also exhaust the high-temperature gas generated in the internal mixer chamber 4 during the internal mixing process.

[0049] It should be added that as Figure 6 and 7 shown, the feeding assembly 2 includes a feeding chamber 21, a pushing assembly 24 slidably arranged in the feeding chamber 21, a feeding channel 23 communicated with one side of the feeding chamber 21 and corresponding to the pushing assembly 22, and a feeding bin 22 installed on the top of the feeding channel 23. The pushing assembly 24 intermittently moves to block the feeding channel 23.

[0050] In this embodiment, during the feeding process of the feeding assembly 2 to the kneading chamber 4, the granular materials to be added are placed through the feeding bin 22 on both sides of the rotor assembly 5 rotating at a low speed. When the pushing assembly 24 moves upward to above the feeding channel 23, the gas in the kneading chamber 4 will be discharged through the feeding channel 23, and the granular materials in the feeding bin 22 will enter the feeding chamber 21 along the feeding channel 23. While the pushing assembly 24 returns again to block the feeding channel 23, the materials are completely pushed into the kneading chamber 4.

[0051] It should also be added that the pushing assembly 24 includes a pusher 241 slidably arranged in the feeding chamber 21 and a pushing motor 242 arranged at the top of the feeding chamber 21 and connected to the pusher 24.

[0052] In this embodiment, the pushing motor 242 preferably a cylinder can drive the pusher 241 to reciprocate up and down in the feeding chamber 21, so as to complete the exhaust and feeding actions.

[0053] As Figure 2 shown, the internal mixer further includes a pressing assembly 5. The pressing assembly 5 that pushes the materials pushed to both sides of the rotor assembly 3 towards the rotor assembly 3 is arranged on one side of the bottom of the machine body 1.

[0054] In this embodiment, in order to better realize that the rotor assembly 3 pushes the materials after extrusion and shearing to both ends of the rotor assembly 3, and under the driving force on both sides of the rotor assembly 3, returns to the middle of the rotor assembly 3 again for cyclic processing. During the process that the rotor assembly 3 pushes the materials to both sides of the rotor, the pressing assembly 5 will reciprocally perform the extrusion action of the materials towards both ends of the rotor assembly 3, so that the materials are continuously extruded onto the rotor assembly 3. While realizing the pushing, pressing and shearing of the materials, it can also make the materials be quickly pushed to both ends of the rotor assembly 3. Thus, under the driving force on both ends of the rotor assembly 3, the materials are efficiently carried back to the middle of the rotor assembly 3 for extrusion processing.

[0055] It should be added that, as Figure 3 shown, the pressing assembly 5 includes a pressing channel 51 opened at the bottom of the machine body 1 and corresponding to both ends of the kneading chamber 4, a pressing member 52 slidably arranged in the pressing channel 51, a pulling member 53 with one end connected to the pressing member 52, a driving disk 54 eccentrically connected to the other end of the pulling member 53, a rotating shaft 55 installed at the central position of the driving disk 54, and a pressing motor 56 installed on the machine body 1 and with its power end connected to the rotating shaft 55.

[0056] In this embodiment, the blanking motor 56 is preferably a hydraulic motor. The driving disk 54 is driven to rotate by the power of the blanking motor 56, so as to drive the pulling member 53 connected eccentrically to drive the blanking member 52 to move up and down in the blanking channel 51. When the material is pushed and scattered to both sides by the power of the rotor assembly 3, the material will enter the blanking channel 51 and be extruded towards the rotor assembly 3 by the blanking member 52.

[0057] As Figure 4 shown, the rotor assembly 3 includes: pushing rotor members 31 symmetrically arranged on both sides; and an extrusion rotor member 32, the extrusion rotor member 32 is arranged between the pushing rotor members 31; the continuously rotating pushing rotor members 31 continuously push the material towards the extrusion rotor member 32; the material is rotated and pushed by the extrusion rotor member 32 to the pushing rotor members 31.

[0058] In this embodiment, during the process of the rotor assembly 3 shearing and dispersing the material fed by the feeding assembly 2, the pushing rotor members 31 continuously convey power to the material fed by the feeding assembly 2, so that the material is continuously pushed towards the middle extrusion rotor member 32. And during the pushing process, the rotating pushing rotor member 32 also rotates at a high speed along the rotation direction, so that when the material is pushed into the extrusion rotor member 32, the material is sheared under the interaction of the pushing rotor members 31 and the extrusion rotor member 32. And during the process of the extrusion rotor member 32 pushing, pressing and dispersing the material and conveying it to the pushing rotor members 31 on both sides, the material will be sheared again under the interaction of the pushing rotor members 31 and the extrusion rotor member 32, thereby improving the shearing and mixing efficiency of the material.

[0059] As Figure 5 shown, the extrusion rotor member 32 includes: an extrusion rotor 321; and a first driving part 322 for driving the extrusion rotor 321 to switch between high-speed and low-speed rotations. The first driving part 322 passes through the pushing rotor member 31 and is connected to the extrusion rotor 321.

[0060] In this embodiment, when the extrusion rotor member 32 shears the material, the first driving part 322 intermittently completes the switching of the extrusion rotor 321 from high-speed to low-speed rotation, so that the continuously rotating extrusion rotor 321 continuously pushes, presses and disperses the low-speed extrusion rotor 321, thereby ensuring that the mixing effect is more uniform under the continuous dispersing action of the material.

[0061] As Figure 9 shown, the extrusion rotor 321 includes: an extrusion rotating body 3211; extrusion members 3212, and the symmetrically arranged extrusion members 3212 are connected in a "V"-shaped spiral.

[0062] In this embodiment, during the process of pushing and extruding the material by the extrusion rotor 321, while the extrusion brick 3211 is rotating, the extrusion member 3212 continuously shears the material exposed in the internal mixer chamber 4. At the same time, when the extrusion rotor 321 rotates during the two sets of extrusion processes, when the extrusion member 3212 on one set of extrusion rotors 321 rotates to the lower side between the two sets of extrusion rotors 321, it switches to low-speed rotation. The extrusion member 3212 on the other set of extrusion rotors 321 will rotate and carry the material at high speed towards the upper side of the extrusion member 3212 of the previous set to form an extrusion. When it arrives, the extrusion brick 3211 of the previous set switches to high speed again, and the extrusion member 3212 after high-speed extrusion switches to the low-speed state. The extrusion member 3212 of the previous set completes the pushing and squeezing and dispersing process on the extrusion member 3212 that has switched to the low-speed state again. This process is repeated continuously to complete the dispersing process of all materials, thereby improving the uniformity of material processing.

[0063] As Figure 10 and 11 shown, the first driving part 322 includes: a driving member 3221 that passes through the pushing rotor member 31 and is connected to the extrusion rotor 321; a power switching gear disk 3222, which is arranged in sequence along the axial direction of the driving member 3221; and a transmission assembly 3223. The transmission assembly 3223 for respectively outputting high-speed and low-speed rotational forces is arranged on one side of the power switching gear disk 3222. Transmission teeth 32221 that are in transmission engagement with the transmission assembly 3223 are arranged at intervals on the power switching gear disk 3222. The transmission teeth 32221 between adjacent power switching gear disks 3222 are arranged staggeredly.

[0064] In this embodiment, during the process of the first driving part 322 driving the extrusion rotor 321 to switch between high-speed and low-speed rotations, through the transmission action of the transmission assembly 3223, a high-speed rotation area and a low-speed rotation area will be formed. When the extrusion rotor 321 rotates at high speed, the transmission teeth 32221 on one set of power switching gear disks 3222 will be in transmission engagement with the transmission assembly 3223 in the high-speed rotation area, thereby driving the extrusion rotor 321 to rotate at high speed by driving the driving member 3221. Along with the rotation of the driving member 3221, the transmission teeth 32221 on the other set of power switching gear disks 3222 will be in transmission engagement with the transmission assembly 3223 in the low-speed rotation area, and the transmission teeth 32221 on the power switching gear disk 3222 that was originally in the high-speed state will be separated from the high-speed rotation area, thus realizing the cyclic switching of the extrusion rotor 321 from high speed to low speed and then to high speed.

[0065] A double-drive and double-speed internal mixer of the present invention further includes a lower plug assembly 6 provided at the bottom of the machine body 1 for discharging the internally mixed material.

[0066] As Figure 5 shown, the lower plug assembly 6 includes a discharging channel 61 opened at the bottom of the machine body 1 and communicating with the kneading chamber 4, a lower plug 62 slidably disposed in the discharging channel 61, and a power member 63 having a power end connected to the lower plug 62.

[0067] In this embodiment, the power member 63 is preferably a cylinder. Under the power action of the power member 63, the up-and-down movement of the lower plug 62 can be realized, so as to open and close the discharging channel 61. Furthermore, when it is opened, the kneaded material can be discharged.

[0068] Embodiment Two

[0069] As Figure 9 shown, the same or corresponding components as those in Embodiment One are denoted by the corresponding reference numerals in Embodiment One. For the sake of simplicity, only the differences from Embodiment One will be described below. The difference between this Embodiment Two and Embodiment One lies in:

[0070] The pushing rotor member 31 includes: a pushing rotor body 311 which is in a frustum shape; a conveying member 312 which is spirally arranged on the pushing rotor body 311; and a second driving part 313 which is connected to the pushing rotor body 311.

[0071] In this embodiment, during the process of feeding the conveyed material of the feeding assembly 2 towards the extrusion rotor member 32 by the pushing rotor member 31, the pushing rotor body 311 will be driven to rotate by the power action of the second driving part 313, so as to utilize the spirally arranged conveying member 312 to provide a pushing pressure to continuously push the material towards the extrusion rotor member 32. And through the structural design of the frustum-shaped pushing rotor body 311, it is convenient for the material to be transferred obliquely towards one side of the extrusion rotor member 32, and it will play a certain squeezing and pushing role on the material with a reverse force, reducing the degree of the material returning to both sides.

[0072] Working Steps

[0073] Step One: Exhaust and feed. The pushing assembly 22 moves upward in the feeding chambers 21 at the corresponding two ends of the low-speed rotating rotor assembly 3, so that the feeding channel 23 communicates with the feeding chambers 21. The gas in the kneading chamber 4 will be discharged from the feeding channel 23 along the feeding chambers 21. At the same time, the feeding channel 23 will carry granular materials into the feeding chambers 21, and the downward power of the pushing assembly 22 will squeeze the granular materials into the kneading chamber 4;

[0074] Step 2: Pushing and Shearing. Push the material carried by the pushing rotor member 31 into the internal mixer chamber 4 towards the extrusion rotor member 32 at the middle position, and under the high-speed rotational force of the pushing rotor member 31 relative to the extrusion rotor member 32, rotate, shear, push, and feed the material between the pushing rotor member 31 and the extrusion rotor member 32;

[0075] Step 3: Material Dispersion. The material reaching the extrusion rotor member 32 will be rotationally sheared between the extrusion rotor members 32 and between the extrusion rotor member 32 and the internal mixer chamber 4 under the rotational force of the extrusion rotor member 32. Meanwhile, when the material reaches between the extrusion rotor members 32, the first driving part 322 provides a driving force to cause the extrusion member 3212 on one side of the pushing and pressing rotating body 321 to move at high speed towards the extrusion member 3212 on the pushing and pressing rotating body 321 rotating at low speed on the other side and extrude the material above it until the extrusion member 3212 on the upper layer moves to reach the extrusion member 3212 on the lower layer and switches to the low-speed state, while the extrusion member 3212 on the lower layer in the low-speed state switches to the high-speed state, and so on;

[0076] Step 4: Material Extrusion. When the "V"-shaped spiral extrusion member 3212 on the upper layer extrudes downward, it will extrude and guide the material in both lateral directions, causing the material to reach the pressing channel 51 where the pressing member 52 is in the descending state;

[0077] Step 5: Circular Pushing. The pressing motor 56 drives the descending pressing member 52 to reciprocate up and down along the pressing channel 51 and push towards the bottom side of the pushing rotor member 31. The material reaching the pushing rotor member 31 is driven by the conical pushing rotating body 311 rotating at high speed, causing the helically arranged conveying member 312 to circularly push towards the extrusion rotor member 32 again;

[0078] Step 6: Discharging. After the internal mixer chamber 4 has been processing for a predetermined time, the power member 63 drives the lower plug 62 to leave the discharging channel 61, and the material is discharged from the discharging channel 61.

[0079] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double - drive and double - speed internal mixer, comprising a machine body, characterized in that, it further comprises: A feeding component for intermittent feeding and exhausting air during the internal mixing process. The feeding components are arranged on both sides of the machine body; A rotor component that pushes the materials fed from both sides by the feeding component towards the middle and rotates and shears them, and rotates and disperses the materials reaching the middle and rotates and shears them. The rotor components are sequentially installed on the machine body; and An internal mixing chamber for accommodating the rotor component and cooperating with the rotor component to mix the materials. The internal mixing chamber is arranged inside the machine body; The rotor component in the high - speed rotation state continuously pushes and shears the materials towards the rotor component in the low - speed rotation state along the rotation direction, so that the materials are pushed to both sides of the rotor component; The rotor component intermittently switches between high - speed rotation and low - speed rotation; The rotor component includes: Pushing rotor parts symmetrically arranged on both sides; and An extrusion rotor part arranged between the pushing rotor parts; The pushing rotor parts rotating at high speed continuously push the materials towards one side of the extrusion rotor part; the materials are rotated and pushed by the extrusion rotor part to the pushing rotor parts; The extrusion rotor part includes: An extrusion rotor; and A first driving part for driving the extrusion rotor to switch between high - speed and low - speed rotation. The first driving part passes through the pushing rotor part and is connected to the extrusion rotor; The extrusion rotor includes: An extrusion rotating body; Extrusion pieces, and the symmetrically arranged extrusion pieces are connected in a "V" - shaped spiral.

2. The double - drive and double - speed internal mixer according to claim 1, characterized in that, The feeding component intermittently feeds materials to both ends of the rotor component in the low - speed rotation state.

3. The double - drive and double - speed internal mixer according to claim 1, characterized in that, The internal mixer further comprises: A pressure - feeding component for pushing the materials pushed to both sides of the rotor component towards the rotor component. The pressure - feeding component is arranged on one side of the bottom of the machine body.

4. The double - drive and double - speed internal mixer according to claim 1, characterized in that, The first driving part includes: A driving piece passing through the pushing rotor part and connected to the extrusion rotor; A power - switching gear disk, and the power - switching gear disks are arranged in sequence along the axial direction of the driving piece; and A transmission component for respectively outputting high - speed and low - speed rotational forces. The transmission component is arranged on one side of the power - switching gear disk; Transmission teeth meshing with the transmission component are arranged at intervals on the power - switching gear disk; The transmission teeth between adjacent power - switching gear disks are arranged staggeredly.

5. The double - drive and double - speed internal mixer according to claim 1, characterized in that, The pushing rotor part includes: A pushing rotating body, and the pushing rotating body is in a frustum - shaped structure; Conveying pieces, and the conveying pieces are arranged in a spiral shape on the pushing rotating body; and A second driving part, and the second driving part is connected to the pushing rotating body.

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